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While driving down the interstate car randomly turns off and on

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Old 07-19-2017, 09:28 AM
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Default While driving down the interstate car randomly turns off and on

So for example while I am driving down the interstate my01 will randomly turn off for a few seconds then turn back on. I thought it was just bogging down. But one day I decided to press in the clutch while it was doing it and the rpms fell all the way to zero. Dash stayed lit up. I've cleaned out the map passageway, new coil packs, new plugs, new for, cleaned iacv. Could this problem be a sensor of some sort? Happenes when I'm anywhere. Hot or cold. Not like heat soak. Also in the morning the car won't crank. When I push the button to start I get a click under the dash and you can here the fuel pump speed up. Starter solenoid doesn't make any sounds like it's a dead battery but the voltage test perfect 12.4. I tried the clutch safety switch bypass and it still happenes. So I have to push it off. Then it works when it gets warmed up.
Old 07-19-2017, 11:22 AM
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the engine shuts off and will turn itself back on or you have to turn it back on while moving?
Old 07-19-2017, 02:00 PM
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Does it on its on unless I push in the clutch and let the rpms go to zero. Then I have to restart it.
Old 07-19-2017, 02:12 PM
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This isn't your main problem but 12.4v DC is bad battery. Only 80% charged. Put a load tester on it. Ever autoparts store will test it for you. Should not cause the car to cut out. Lose grounds, etc. How's the fuel pump? May be intermittent.

Old 07-19-2017, 03:09 PM
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Any CEL? Could be a cam position sensor that is intermittent.
Old 07-19-2017, 05:23 PM
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I was thinking maybe fuel pump too. Only CEL is p1457. Evap leak. I'll check the battery but I don't think that's the problem. It was reading 12.4 with my volt meter.
Old 07-19-2017, 05:24 PM
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Originally Posted by Chuck S
This isn't your main problem but 12.4v DC is bad battery. Only 80% charged. Put a load tester on it. Ever autoparts store will test it for you. Should not cause the car to cut out. Lose grounds, etc. How's the fuel pump? May be intermittent.
I need to check my grounds. It's so hard to really explain what it does.
Old 07-19-2017, 07:51 PM
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Sound fuel related. Fuel filter checked? Maybe, electrical connections to the fuel pump. Grounding points, near the pump.
Old 07-19-2017, 08:15 PM
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I was going to say fuel pump, until I read that the engine wont turn when pushing starter button sometimes in the morning - if im understanding correctly. This would be two different sounding issues, then engine just dying wile driving but still getting voltage/dash lights.

The main relay under dash (Forget designation AGC?) which controls fuel pump power might be it. May be possible that this is going bad and starting to ark or corrode inside creating symptoms of intermittent failure, rather then just 100% failed. There is also 2 clutch switches, if you have messed with these, make sure they are getting a complete circuit connection/loop.
Old 07-19-2017, 09:04 PM
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what clutch do you have?


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